what does the bible say?
Quoting from Joel 2:32, Romans 10:13 says, "For 'everyone who calls on the name of the Lord will be saved'" (cp. Acts 2:16–41). To "call on the name of the Lord," means outward profession of faith caused by heart attitude and belief. Paul references Old Testament passages to demonstrate that salvation has never been by our works, but always by God's work (Isaiah 28:16; Ephesians 2:8–9). God’s grace received through faith in the Lord saves us, not our works or our heritage (Galatians 3:27–29; Romans 10:12–13). Salvation comes when we believe in our heart the resurrection of Christ, which also implies believing in His sacrificial death (Romans 10:9). Those who believe this are born again (John 3:3–18). Beliefs of the heart never stay in the heart (Luke 6:45) but are shown in words and deeds (Matthew 7:15–20). In Romans 10, Paul shows the natural result of believing in the gospel: declaring that belief. Saving faith will always be marked by calling on the Lord (Romans 10:11–13). Our actions don’t save us, though. Only faith in Christ saves. Calling on the Lord expresses our faith.